Protein structure prediction and evaluation is one of the major fields of computational biology. Estimation of dihedral angle can provide information about the acceptability of both theoretically predicted and experimentally determined structures. Here we report on the sequence specific dihedral angle distribution of high resolution protein structures available in PDB and Sasichandran, a tool f...

AMA Selvan V, Ramachandran A, Mohamed Sidiq M. Can vitamin D supplementation influence the physical components and performance of athletes with deficiency? A systematic review. Physiotherapy Quarterly. 2023;31(2):7-13. doi:10.5114/pq.2023.125750. APA Selvan, V., Ramachandran, A., Mohamed, & Sidiq, (2023). Quarterly, 31(2), 7-13. https://doi.org/10.5114/pq.2023.125750 Chicago Vijay, Arunachalam ...

Following the suggestion of triple-collagen (Ramachandran and Kartha, chain models for the helical molecules of 1955), improved similar structures were

Distributions of the backbone dihedral angles of proteins have been studied for over 40 years. While many statistical analyses have been presented, only a handful of probability densities are publicly available for use in structure validation and structure prediction methods. The available distributions differ in a number of important ways, which determine their usefulness for various purposes....

The geometric structures of proteins are vital to the understanding of biochemical interactions. However, there is much yet to be understood about the spatial arrangements of the chains of amino acids making up any given protein. In particular, while conventional analysis tools like the Ramachandran plot supply some insight into the local relative orientation of pairs of amino acid residues, th...